Calcinosis circumscripta: case report and review.

Calcinosis circumscripta, usually associated with scleroderma, Raynaud's phenomenon, and telangiectasia, usually affects middle aged persons and is more common in females than males in a ratio of 6 to 1. The etiology is unknown, and onset of the lesion is slow and insidious. It occurs in the periarticular area as a painful mass with surrounding erythema and edema. It is visible in x-rays as localized, scattered calcification.